SOLVENT EFFECT ON BELL-SHAPED ENERGY-GAP DEPENDENCE FOR CHARGE-TRANSFER TRIPLET EXCIPLEXES

被引：15

作者：

LEVIN, PP

RAGHAVAN, PKN

机构：

[1] Institute of Chemical Physics, Academy of Sciences, the USSR, 117977 Moscow, V-334

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 182卷 / 06期

关键词：

D O I：

10.1016/0009-2614(91)90142-V

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The decay kinetics of charge transfer triplet exciplexes-radical ion pairs formed by electron transfer from aromatic amines to the quinones in the triplet excited states in benzene, ethyl acetate and tert-amyl alcohol was studied by laser photolysis. The bell-shaped dependence for the intersystem electron transfer becomes more pronounced and narrow with the increasing polarity of the medium, which may be explained in terms of the single quantum mode approximation within the non-adiabatic multiphonon electron transfer theory by means of the decrease in the vibrational frequency of the quantum mode and in the quantum reorganization energy.

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收藏

页码：663 / 667

页数：5

相关论文

共 28 条

[1] CHARGE RECOMBINATION PROCESS OF ION-PAIR STATE PRODUCED BY EXCITATION OF CHARGE-TRANSFER COMPLEX IN ACETONITRILE SOLUTION - ESSENTIALLY DIFFERENT CHARACTER OF ITS ENERGY-GAP DEPENDENCE FROM THAT OF GEMINATE ION-PAIR FORMED BY ENCOUNTER BETWEEN FLUORESCER AND QUENCHER [J].

ASAHI, T ;

MATAGA, N .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (18) :6575-6578

[2] ESTIMATION OF EXCITED-STATE REDOX POTENTIALS BY ELECTRON-TRANSFER QUENCHING - APPLICATION OF ELECTRON-TRANSFER THEORY TO EXCITED-STATE REDOX PROCESSES [J].

BOCK, CR ;

CONNOR, JA ;

GUTIERREZ, AR ;

MEYER, TJ ;

WHITTEN, DG ;

SULLIVAN, BP ;

NAGLE, JK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (17) :4815-4824

[3] INTRAMOLECULAR LONG-DISTANCE ELECTRON-TRANSFER IN ORGANIC-MOLECULES [J].

CLOSS, GL ;

MILLER, JR .

SCIENCE, 1988, 240 (4851) :440-447

[4] ELECTRON-TRANSFER REACTIONS IN THE MARCUS INVERTED REGION - DIFFERENCES IN SOLVATION AND ELECTRONIC COUPLING BETWEEN EXCITED CHARGE-TRANSFER COMPLEXES AND GEMINATE RADICAL ION-PAIRS [J].

GOULD, IR ;

MOODY, R ;

FARID, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1988, 110 (21) :7242-7244

[5] SPECIFIC DEUTERIUM-ISOTOPE EFFECTS ON THE RATES OF ELECTRON-TRANSFER WITHIN GEMINATE RADICAL-ION PAIRS [J].

GOULD, IR ;

FARID, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1988, 110 (23) :7883-7885

[6] RETURN ELECTRON-TRANSFER WITHIN GEMINATE RADICAL ION-PAIRS - OBSERVATION OF THE MARCUS INVERTED REGION [J].

GOULD, IR ;

EGE, D ;

MATTES, SL ;

FARID, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (12) :3794-3796

[7] EFFECT OF MOLECULAR DIMENSION ON THE RATE OF RETURN ELECTRON-TRANSFER WITHIN PHOTOPRODUCED GEMINATE RADICAL ION-PAIRS [J].

GOULD, IR ;

MOSER, JE ;

EGE, D ;

FARID, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1988, 110 (06) :1991-1993

[8] PHOTOINDUCED ELECTRON-TRANSFER IN PYROMELLITIMIDE-BRIDGED PORPHYRINS [J].

HARRISON, RJ ;

PEARCE, B ;

BEDDARD, GS ;

COWAN, JA ;

SANDERS, JKM .

CHEMICAL PHYSICS, 1987, 116 (03) :429-448

[9] SOLVENT POLARITY EFFECTS ON INTRAMOLECULAR ELECTRON-TRANSFER .1. ENERGETIC ASPECTS [J].

HEITELE, H ;

FINCKH, P ;

WEEREN, S ;

POLLINGER, F ;

MICHELBEYERLE, ME .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (13) :5173-5179

[10] ENERGY-GAP RULE AND KINETICS OF REVERSE ELECTRON-TRANSFER IN TRIPLET EXCIPLEXES [J].

LEVIN, PP ;

KUZMIN, VA ;

PLUZHNIKOV, PF .

BULLETIN OF THE ACADEMY OF SCIENCES OF THE USSR DIVISION OF CHEMICAL SCIENCE, 1988, 37 (05) :874-876